text: /******************************************************************************
   *
   * Module Name: psargs - Parse AML opcode arguments
   *              $Revision: 1.1 $
   *
   *****************************************************************************/
  
  /******************************************************************************
   *
   * 1. Copyright Notice
   *
   * Some or all of this work - Copyright (c) 1999 - 2003, Intel Corp.
   * All rights reserved.
   *
   * 2. License
   *
   * 2.1. This is your license from Intel Corp. under its intellectual property
   * rights.  You may have additional license terms from the party that provided
   * you this software, covering your right to use that party's intellectual
   * property rights.
   *
   * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
   * copy of the source code appearing in this file ("Covered Code") an
   * irrevocable, perpetual, worldwide license under Intel's copyrights in the
   * base code distributed originally by Intel ("Original Intel Code") to copy,
   * make derivatives, distribute, use and display any portion of the Covered
   * Code in any form, with the right to sublicense such rights; and
   *
   * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
   * license (with the right to sublicense), under only those claims of Intel
   * patents that are infringed by the Original Intel Code, to make, use, sell,
   * offer to sell, and import the Covered Code and derivative works thereof
   * solely to the minimum extent necessary to exercise the above copyright
   * license, and in no event shall the patent license extend to any additions
   * to or modifications of the Original Intel Code.  No other license or right
   * is granted directly or by implication, estoppel or otherwise;
   *
   * The above copyright and patent license is granted only if the following
   * conditions are met:
   *
   * 3. Conditions
   *
   * 3.1. Redistribution of Source with Rights to Further Distribute Source.
   * Redistribution of source code of any substantial portion of the Covered
   * Code or modification with rights to further distribute source must include
   * the above Copyright Notice, the above License, this list of Conditions,
   * and the following Disclaimer and Export Compliance provision.  In addition,
   * Licensee must cause all Covered Code to which Licensee contributes to
   * contain a file documenting the changes Licensee made to create that Covered
   * Code and the date of any change.  Licensee must include in that file the
   * documentation of any changes made by any predecessor Licensee.  Licensee
   * must include a prominent statement that the modification is derived,
   * directly or indirectly, from Original Intel Code.
   *
   * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
   * Redistribution of source code of any substantial portion of the Covered
   * Code or modification without rights to further distribute source must
   * include the following Disclaimer and Export Compliance provision in the
   * documentation and/or other materials provided with distribution.  In
   * addition, Licensee may not authorize further sublicense of source of any
   * portion of the Covered Code, and must include terms to the effect that the
   * license from Licensee to its licensee is limited to the intellectual
   * property embodied in the software Licensee provides to its licensee, and
   * not to intellectual property embodied in modifications its licensee may
   * make.
   *
   * 3.3. Redistribution of Executable. Redistribution in executable form of any
   * substantial portion of the Covered Code or modification must reproduce the
   * above Copyright Notice, and the following Disclaimer and Export Compliance
   * provision in the documentation and/or other materials provided with the
   * distribution.
   *
   * 3.4. Intel retains all right, title, and interest in and to the Original
   * Intel Code.
   *
   * 3.5. Neither the name Intel nor any other trademark owned or controlled by
   * Intel shall be used in advertising or otherwise to promote the sale, use or
   * other dealings in products derived from or relating to the Covered Code
   * without prior written authorization from Intel.
   *
   * 4. Disclaimer and Export Compliance
   *
   * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
   * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
   * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
   * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
   * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
   * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
   * PARTICULAR PURPOSE.
   *
   * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
   * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
   * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
   * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
   * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
   * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
   * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
   * LIMITED REMEDY.
   *
   * 4.3. Licensee shall not export, either directly or indirectly, any of this
   * software or system incorporating such software without first obtaining any
   * required license or other approval from the U. S. Department of Commerce or
   * any other agency or department of the United States Government.  In the
   * event Licensee exports any such software from the United States or
   * re-exports any such software from a foreign destination, Licensee shall
   * ensure that the distribution and export/re-export of the software is in
   * compliance with all laws, regulations, orders, or other restrictions of the
   * U.S. Export Administration Regulations. Licensee agrees that neither it nor
   * any of its subsidiaries will export/re-export any technical data, process,
   * software, or service, directly or indirectly, to any country for which the
   * United States government or any agency thereof requires an export license,
   * other governmental approval, or letter of assurance, without first obtaining
   * such license, approval or letter.
   *
   *****************************************************************************/
  
  #define __PSARGS_C__
  
  #include "acpi.h"
  #include "acparser.h"
  #include "amlcode.h"
  #include "acnamesp.h"
  
  #define _COMPONENT          ACPI_PARSER
          ACPI_MODULE_NAME    ("psargs")
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AcpiPsGetNextPackageLength
   *
   * PARAMETERS:  ParserState         - Current parser state object
   *
   * RETURN:      Decoded package length.  On completion, the AML pointer points
   *              past the length byte or bytes.
   *
   * DESCRIPTION: Decode and return a package length field
   *
   ******************************************************************************/
  
  UINT32
  AcpiPsGetNextPackageLength (
      ACPI_PARSE_STATE        *ParserState)
  {
      UINT32                  EncodedLength;
      UINT32                  Length = 0;
  
  
      ACPI_FUNCTION_TRACE ("PsGetNextPackageLength");
  
  
      EncodedLength = (UINT32) ACPI_GET8 (ParserState->Aml);
      ParserState->Aml++;
  
  
      switch (EncodedLength >> 6) /* bits 6-7 contain encoding scheme */
      {
      case 0: /* 1-byte encoding (bits 0-5) */
  
          Length = (EncodedLength & 0x3F);
          break;
  
  
      case 1: /* 2-byte encoding (next byte + bits 0-3) */
  
          Length = ((ACPI_GET8 (ParserState->Aml) << 04) |
                   (EncodedLength & 0x0F));
          ParserState->Aml++;
          break;
  
  
      case 2: /* 3-byte encoding (next 2 bytes + bits 0-3) */
  
          Length = ((ACPI_GET8 (ParserState->Aml + 1) << 12) |
                    (ACPI_GET8 (ParserState->Aml)     << 04) |
                    (EncodedLength & 0x0F));
          ParserState->Aml += 2;
          break;
  
  
      case 3: /* 4-byte encoding (next 3 bytes + bits 0-3) */
  
          Length = ((ACPI_GET8 (ParserState->Aml + 2) << 20) |
                    (ACPI_GET8 (ParserState->Aml + 1) << 12) |
                    (ACPI_GET8 (ParserState->Aml)     << 04) |
                    (EncodedLength & 0x0F));
          ParserState->Aml += 3;
          break;
  
      default:
  
          /* Can't get here, only 2 bits / 4 cases */
          break;
      }
  
      return_VALUE (Length);
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AcpiPsGetNextPackageEnd
   *
   * PARAMETERS:  ParserState         - Current parser state object
   *
   * RETURN:      Pointer to end-of-package +1
   *
   * DESCRIPTION: Get next package length and return a pointer past the end of
   *              the package.  Consumes the package length field
   *
   ******************************************************************************/
  
  UINT8 *
  AcpiPsGetNextPackageEnd (
      ACPI_PARSE_STATE        *ParserState)
  {
      UINT8                   *Start = ParserState->Aml;
      ACPI_NATIVE_UINT        Length;
  
  
      ACPI_FUNCTION_TRACE ("PsGetNextPackageEnd");
  
  
      /* Function below changes ParserState->Aml */
  
      Length = (ACPI_NATIVE_UINT) AcpiPsGetNextPackageLength (ParserState);
  
      return_PTR (Start + Length); /* end of package */
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AcpiPsGetNextNamestring
   *
   * PARAMETERS:  ParserState         - Current parser state object
   *
   * RETURN:      Pointer to the start of the name string (pointer points into
   *              the AML.
   *
   * DESCRIPTION: Get next raw namestring within the AML stream.  Handles all name
   *              prefix characters.  Set parser state to point past the string.
   *              (Name is consumed from the AML.)
   *
   ******************************************************************************/
  
  char *
  AcpiPsGetNextNamestring (
      ACPI_PARSE_STATE        *ParserState)
  {
      UINT8                   *Start = ParserState->Aml;
      UINT8                   *End = ParserState->Aml;
  
  
      ACPI_FUNCTION_TRACE ("PsGetNextNamestring");
  
  
      /* Handle multiple prefix characters */
  
      while (AcpiPsIsPrefixChar (ACPI_GET8 (End)))
      {
          /* Include prefix '\\' or '^' */
  
          End++;
      }
  
      /* Decode the path */
  
      switch (ACPI_GET8 (End))
      {
      case 0:
  
          /* NullName */
  
          if (End == Start)
          {
              Start = NULL;
          }
          End++;
          break;
  
      case AML_DUAL_NAME_PREFIX:
  
          /* Two name segments */
  
          End += 1 + (2 * ACPI_NAME_SIZE);
          break;
  
      case AML_MULTI_NAME_PREFIX_OP:
  
          /* Multiple name segments, 4 chars each */
  
          End += 2 + ((ACPI_SIZE) ACPI_GET8 (End + 1) * ACPI_NAME_SIZE);
          break;
  
      default:
  
          /* Single name segment */
  
          End += ACPI_NAME_SIZE;
          break;
      }
  
      ParserState->Aml = (UINT8*) End;
      return_PTR ((char *) Start);
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AcpiPsGetNextNamepath
   *
   * PARAMETERS:  ParserState         - Current parser state object
   *              Arg                 - Where the namepath will be stored
   *              ArgCount            - If the namepath points to a control method
   *                                    the method's argument is returned here.
   *              MethodCall          - Whether the namepath can possibly be the
   *                                    start of a method call
   *
   * RETURN:      Status
   *
   * DESCRIPTION: Get next name (if method call, return # of required args).
   *              Names are looked up in the internal namespace to determine
   *              if the name represents a control method.  If a method
   *              is found, the number of arguments to the method is returned.
   *              This information is critical for parsing to continue correctly.
   *
   ******************************************************************************/
  
  ACPI_STATUS
  AcpiPsGetNextNamepath (
      ACPI_WALK_STATE         *WalkState,
      ACPI_PARSE_STATE        *ParserState,
      ACPI_PARSE_OBJECT       *Arg,
      BOOLEAN                 MethodCall)
  {
      char                    *Path;
      ACPI_PARSE_OBJECT       *NameOp;
      ACPI_STATUS             Status = AE_OK;
      ACPI_OPERAND_OBJECT     *MethodDesc;
      ACPI_NAMESPACE_NODE     *Node;
      ACPI_GENERIC_STATE      ScopeInfo;
  
  
      ACPI_FUNCTION_TRACE ("PsGetNextNamepath");
  
  
      Path = AcpiPsGetNextNamestring (ParserState);
  
      /* Null path case is allowed */
  
      if (Path)
      {
          /*
           * Lookup the name in the internal namespace
           */
          ScopeInfo.Scope.Node = NULL;
          Node = ParserState->StartNode;
          if (Node)
          {
              ScopeInfo.Scope.Node = Node;
          }
  
          /*
           * Lookup object.  We don't want to add anything new to the namespace
           * here, however.  So we use MODE_EXECUTE.  Allow searching of the
           * parent tree, but don't open a new scope -- we just want to lookup the
           * object  (MUST BE mode EXECUTE to perform upsearch)
           */
          Status = AcpiNsLookup (&ScopeInfo, Path, ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
                      ACPI_NS_SEARCH_PARENT | ACPI_NS_DONT_OPEN_SCOPE, NULL, &Node);
          if (ACPI_SUCCESS (Status) && MethodCall)
          {
              if (Node->Type == ACPI_TYPE_METHOD)
              {
                  /*
                   * This name is actually a control method invocation
                   */
                  MethodDesc = AcpiNsGetAttachedObject (Node);
                  ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
                      "Control Method - %p Desc %p Path=%p\n",
                      Node, MethodDesc, Path));
  
                  NameOp = AcpiPsAllocOp (AML_INT_NAMEPATH_OP);
                  if (!NameOp)
                  {
                      return_ACPI_STATUS (AE_NO_MEMORY);
                  }
  
                  /* Change arg into a METHOD CALL and attach name to it */
  
                  AcpiPsInitOp (Arg, AML_INT_METHODCALL_OP);
                  NameOp->Common.Value.Name = Path;
  
                  /* Point METHODCALL/NAME to the METHOD Node */
  
                  NameOp->Common.Node = Node;
                  AcpiPsAppendArg (Arg, NameOp);
  
                  if (!MethodDesc)
                  {
                      ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
                          "Control Method - %p has no attached object\n",
                          Node));
                      return_ACPI_STATUS (AE_AML_INTERNAL);
                  }
  
                  ACPI_DEBUG_PRINT ((ACPI_DB_PARSE,
                      "Control Method - %p Args %X\n",
                      Node, MethodDesc->Method.ParamCount));
  
                  /* Get the number of arguments to expect */
  
                  WalkState->ArgCount = MethodDesc->Method.ParamCount;
                  return_ACPI_STATUS (AE_OK);
              }
  
              /*
               * Else this is normal named object reference.
               * Just init the NAMEPATH object with the pathname.
               * (See code below)
               */
          }
  
          if (ACPI_FAILURE (Status))
          {
              /*
               * 1) Any error other than NOT_FOUND is always severe
               * 2) NOT_FOUND is only important if we are executing a method.
               * 3) If executing a CondRefOf opcode, NOT_FOUND is ok.
               */
              if ((((WalkState->ParseFlags & ACPI_PARSE_MODE_MASK) == ACPI_PARSE_EXECUTE) &&
                  (Status == AE_NOT_FOUND)                                                &&
                  (WalkState->Op->Common.AmlOpcode != AML_COND_REF_OF_OP)) ||
  
                  (Status != AE_NOT_FOUND))
              {
                  ACPI_REPORT_NSERROR (Path, Status);
              }
              else
              {
                  /*
                   * We got a NOT_FOUND during table load or we encountered
                   * a CondRefOf(x) where the target does not exist.
                   * -- either case is ok
                   */
                  Status = AE_OK;
              }
          }
      }
  
      /*
       * Regardless of success/failure above,
       * Just initialize the Op with the pathname.
       */
      AcpiPsInitOp (Arg, AML_INT_NAMEPATH_OP);
      Arg->Common.Value.Name = Path;
  
      return_ACPI_STATUS (Status);
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AcpiPsGetNextSimpleArg
   *
   * PARAMETERS:  ParserState         - Current parser state object
   *              ArgType             - The argument type (AML_*_ARG)
   *              Arg                 - Where the argument is returned
   *
   * RETURN:      None
   *
   * DESCRIPTION: Get the next simple argument (constant, string, or namestring)
   *
   ******************************************************************************/
  
  void
  AcpiPsGetNextSimpleArg (
      ACPI_PARSE_STATE        *ParserState,
      UINT32                  ArgType,
      ACPI_PARSE_OBJECT       *Arg)
  {
  
      ACPI_FUNCTION_TRACE_U32 ("PsGetNextSimpleArg", ArgType);
  
  
      switch (ArgType)
      {
      case ARGP_BYTEDATA:
  
          AcpiPsInitOp (Arg, AML_BYTE_OP);
          Arg->Common.Value.Integer = (UINT32) ACPI_GET8 (ParserState->Aml);
          ParserState->Aml++;
          break;
  
  
      case ARGP_WORDDATA:
  
          AcpiPsInitOp (Arg, AML_WORD_OP);
  
          /* Get 2 bytes from the AML stream */
  
          ACPI_MOVE_UNALIGNED16_TO_32 (&Arg->Common.Value.Integer, ParserState->Aml);
          ParserState->Aml += 2;
          break;
  
  
      case ARGP_DWORDDATA:
  
          AcpiPsInitOp (Arg, AML_DWORD_OP);
  
          /* Get 4 bytes from the AML stream */
  
          ACPI_MOVE_UNALIGNED32_TO_32 (&Arg->Common.Value.Integer, ParserState->Aml);
          ParserState->Aml += 4;
          break;
  
  
      case ARGP_QWORDDATA:
  
          AcpiPsInitOp (Arg, AML_QWORD_OP);
  
          /* Get 8 bytes from the AML stream */
  
          ACPI_MOVE_UNALIGNED64_TO_64 (&Arg->Common.Value.Integer, ParserState->Aml);
          ParserState->Aml += 8;
          break;
  
  
      case ARGP_CHARLIST:
  
          AcpiPsInitOp (Arg, AML_STRING_OP);
          Arg->Common.Value.String = (char *) ParserState->Aml;
  
          while (ACPI_GET8 (ParserState->Aml) != '\0')
          {
              ParserState->Aml++;
          }
          ParserState->Aml++;
          break;
  
  
      case ARGP_NAME:
      case ARGP_NAMESTRING:
  
          AcpiPsInitOp (Arg, AML_INT_NAMEPATH_OP);
          Arg->Common.Value.Name = AcpiPsGetNextNamestring (ParserState);
          break;
  
  
      default:
  
          ACPI_REPORT_ERROR (("Invalid ArgType %X\n", ArgType));
          break;
      }
  
      return_VOID;
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AcpiPsGetNextField
   *
   * PARAMETERS:  ParserState         - Current parser state object
   *
   * RETURN:      A newly allocated FIELD op
   *
   * DESCRIPTION: Get next field (NamedField, ReservedField, or AccessField)
   *
   ******************************************************************************/
  
  ACPI_PARSE_OBJECT *
  AcpiPsGetNextField (
      ACPI_PARSE_STATE        *ParserState)
  {
      UINT32                  AmlOffset = ACPI_PTR_DIFF (ParserState->Aml,
                                                         ParserState->AmlStart);
      ACPI_PARSE_OBJECT       *Field;
      UINT16                  Opcode;
      UINT32                  Name;
  
  
      ACPI_FUNCTION_TRACE ("PsGetNextField");
  
  
      /* determine field type */
  
      switch (ACPI_GET8 (ParserState->Aml))
      {
      default:
  
          Opcode = AML_INT_NAMEDFIELD_OP;
          break;
  
      case 0x00:
  
          Opcode = AML_INT_RESERVEDFIELD_OP;
          ParserState->Aml++;
          break;
  
      case 0x01:
  
          Opcode = AML_INT_ACCESSFIELD_OP;
          ParserState->Aml++;
          break;
      }
  
  
      /* Allocate a new field op */
  
      Field = AcpiPsAllocOp (Opcode);
      if (!Field)
      {
          return_PTR (NULL);
      }
  
      Field->Common.AmlOffset = AmlOffset;
  
      /* Decode the field type */
  
      switch (Opcode)
      {
      case AML_INT_NAMEDFIELD_OP:
  
          /* Get the 4-character name */
  
          ACPI_MOVE_UNALIGNED32_TO_32 (&Name, ParserState->Aml);
          AcpiPsSetName (Field, Name);
          ParserState->Aml += ACPI_NAME_SIZE;
  
          /* Get the length which is encoded as a package length */
  
          Field->Common.Value.Size = AcpiPsGetNextPackageLength (ParserState);
          break;
  
  
      case AML_INT_RESERVEDFIELD_OP:
  
          /* Get the length which is encoded as a package length */
  
          Field->Common.Value.Size = AcpiPsGetNextPackageLength (ParserState);
          break;
  
  
      case AML_INT_ACCESSFIELD_OP:
  
          /*
           * Get AccessType and AccessAttrib and merge into the field Op
           * AccessType is first operand, AccessAttribute is second
           */
          Field->Common.Value.Integer32 = (ACPI_GET8 (ParserState->Aml) << 8);
          ParserState->Aml++;
          Field->Common.Value.Integer32 |= ACPI_GET8 (ParserState->Aml);
          ParserState->Aml++;
          break;
  
      default:
  
          /* Opcode was set in previous switch */
          break;
      }
  
      return_PTR (Field);
  }
  
  
  /*******************************************************************************
   *
   * FUNCTION:    AcpiPsGetNextArg
   *
   * PARAMETERS:  ParserState         - Current parser state object
   *              ArgType             - The argument type (AML_*_ARG)
   *              ArgCount            - If the argument points to a control method
   *                                    the method's argument is returned here.
   *
   * RETURN:      Status, and an op object containing the next argument.
   *
   * DESCRIPTION: Get next argument (including complex list arguments that require
   *              pushing the parser stack)
   *
   ******************************************************************************/
  
  ACPI_STATUS
  AcpiPsGetNextArg (
      ACPI_WALK_STATE         *WalkState,
      ACPI_PARSE_STATE        *ParserState,
      UINT32                  ArgType,
      ACPI_PARSE_OBJECT       **ReturnArg)
  {
      ACPI_PARSE_OBJECT       *Arg = NULL;
      ACPI_PARSE_OBJECT       *Prev = NULL;
      ACPI_PARSE_OBJECT       *Field;
      UINT32                  Subop;
      ACPI_STATUS             Status = AE_OK;
  
  
      ACPI_FUNCTION_TRACE_PTR ("PsGetNextArg", ParserState);
  
  
      switch (ArgType)
      {
      case ARGP_BYTEDATA:
      case ARGP_WORDDATA:
      case ARGP_DWORDDATA:
      case ARGP_CHARLIST:
      case ARGP_NAME:
      case ARGP_NAMESTRING:
  
          /* constants, strings, and namestrings are all the same size */
  
          Arg = AcpiPsAllocOp (AML_BYTE_OP);
          if (!Arg)
          {
              return_ACPI_STATUS (AE_NO_MEMORY);
          }
          AcpiPsGetNextSimpleArg (ParserState, ArgType, Arg);
          break;
  
  
      case ARGP_PKGLENGTH:
  
          /* Package length, nothing returned */
  
          ParserState->PkgEnd = AcpiPsGetNextPackageEnd (ParserState);
          break;
  
  
      case ARGP_FIELDLIST:
  
          if (ParserState->Aml < ParserState->PkgEnd)
          {
              /* Non-empty list */
  
              while (ParserState->Aml < ParserState->PkgEnd)
              {
                  Field = AcpiPsGetNextField (ParserState);
                  if (!Field)
                  {
                      return_ACPI_STATUS (AE_NO_MEMORY);
                  }
  
                  if (Prev)
                  {
                      Prev->Common.Next = Field;
                  }
                  else
                  {
                      Arg = Field;
                  }
  
                  Prev = Field;
              }
  
              /* Skip to End of byte data */
  
              ParserState->Aml = ParserState->PkgEnd;
          }
          break;
  
  
      case ARGP_BYTELIST:
  
          if (ParserState->Aml < ParserState->PkgEnd)
          {
              /* Non-empty list */
  
              Arg = AcpiPsAllocOp (AML_INT_BYTELIST_OP);
              if (!Arg)
              {
                  return_ACPI_STATUS (AE_NO_MEMORY);
              }
  
              /* Fill in bytelist data */
  
              Arg->Common.Value.Size = ACPI_PTR_DIFF (ParserState->PkgEnd,
                                                      ParserState->Aml);
              Arg->Named.Data = ParserState->Aml;
  
              /* Skip to End of byte data */
  
              ParserState->Aml = ParserState->PkgEnd;
          }
          break;
  
  
      case ARGP_TARGET:
      case ARGP_SUPERNAME:
      case ARGP_SIMPLENAME:
  
          Subop = AcpiPsPeekOpcode (ParserState);
          if (Subop == 0                  ||
              AcpiPsIsLeadingChar (Subop) ||
              AcpiPsIsPrefixChar (Subop))
          {
              /* NullName or NameString */
  
              Arg = AcpiPsAllocOp (AML_INT_NAMEPATH_OP);
              if (!Arg)
              {
                  return_ACPI_STATUS (AE_NO_MEMORY);
              }
  
              Status = AcpiPsGetNextNamepath (WalkState, ParserState, Arg, 0);
          }
          else
          {
              /* single complex argument, nothing returned */
  
              WalkState->ArgCount = 1;
          }
          break;
  
  
      case ARGP_DATAOBJ:
      case ARGP_TERMARG:
  
          /* single complex argument, nothing returned */
  
          WalkState->ArgCount = 1;
          break;
  
  
      case ARGP_DATAOBJLIST:
      case ARGP_TERMLIST:
      case ARGP_OBJLIST:
  
          if (ParserState->Aml < ParserState->PkgEnd)
          {
              /* non-empty list of variable arguments, nothing returned */
  
              WalkState->ArgCount = ACPI_VAR_ARGS;
          }
          break;
  
  
      default:
  
          ACPI_REPORT_ERROR (("Invalid ArgType: %X\n", ArgType));
          Status = AE_AML_OPERAND_TYPE;
          break;
      }
  
      *ReturnArg = Arg;
      return_ACPI_STATUS (Status);
  }
  